Yesterday, i went to the doctor's office and had negative urine test but then in afternoon noticed light bleeding. For the last three weeks, i have been moody, tired, increased appetite and suffering from sinus pressure. Prior to my period starting at least i think i am, my last period was on 2-4-11 and what was weird was the fact that it lasted 4 days, the first and last being very light and the other two days heavy. Typically, my periods last 5-6 days and the 2-3 days are the heaviest. My husband and i have been having unprotected sex since 12-12-10. Am i making a big deal out of nothing? i am 37 with 3 children